No, for one reason. Mass Effect was originally an Xbox only series that got PS3 ports later on. Its not a true All-Star series. If they actually put him in the game over Spyro, Sora, or a real PS character... I will write a strongly worded letter to SB about it. I'm not gonna sell my game, I'm just gonna RQ every match that has Shepard in it.
Thats immature. Many people love Mass Effect and would like to see Shepard. In the same light as Big Daddy, its a multiplatform game that has an All-Star Character that doesn't associate with any platform a lot.
We are allowed to voice our opinions on this, if there is a thread for it. Not everybody is gonna agree with this. Bioshock and Mass Effect are series' I particularly am not fond of. But looking at the Big Daddy logic, I guess its an option to have Shepard. If he is added through DLC, I'll more than likely never use him (besides to do his arcade). Remember, I'm just saying no. My 1 opinion won't change much anyway..